Phenotype: 
Identification of Fibromyalgia Patients in a Rheumatoid Arthritis Cohort
Algorithm Type: 
Case Only
Institution: 
Vanderbilt University
Implementation Details: 

This implementation was completed on a set of 75 rheumatoid arthritis subjects which were identified from a previously validated algorithm (1). On review of records 73 subjects had a clinical diagnosis of fibromyalgia made by their rheumatologist. 2 subjects did not have the diagnosis of fibromyalgia. 

Citations: 

1. Carroll RJ, Thompson WK, Eyler AE, Mandelin AM, Cai T, Zink RM, et al. Portability of an algorithm to identify rheumatoid arthritis in electronic health records. J Am Med Inform Assoc JAMIA. 2012 Jun;19(e1):e162–9.

True Positive: 
73.00
False Positive: 
2.00
Case Positive Predictive Value: 
0.97